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Originally Posted by FYRHWK1
they still use a harmonic balancer on the front of the crank, as every motor should because tooling isn't perfect, it only dampens the vibrations that arise from that.
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Um, guys, I hate to keep beating the same horse over and over again, but this one just won't seem to die. A "harmonic balancer" is correctly called a torsional vibration damper, and it is used to damp torsional vibrations of the crankshaft. These vibrations have little (nothing that I can think of) to do with rotational imbalance, and everything to do with the firing pressure of the cylinders, the firing order, the dimensions of the crank, and the mass of the slider assys. I'd go so far as to say that rotational imbalance is never considered at any point in the selection of a tv damper.
Haven't we gone over this a few dozen times before?